Almost any medication may cause hives or angioedema. Common culprits include penicillin, aspirin, ibuprofen (Advil, Motrin IB, others), naproxen (Aleve) and blood pressure medications. Common allergens. Other substances that can cause hives and angioedema include pollen, animal dander, latex and insect stings. Environmental factors. Examples include heat, cold, sunlight, water, pressure on the skin, emotional stress and exercise.
The color of Neptune is a bright azure blue. During its flyby in 1989, NASAâs Voyager 2 revealed the bright blue color, different from the pale blue color of Uranus. So why does Neptune have this color? The answer to Neptuneâs color comes from its cloud tops. The upper atmosphere of Neptune is made up [â¦]
Neptune's atmosphere is made up of hydrogen, helium and methane. The methane in Neptune's upper atmosphere absorbs the red light from the sun but reflects the blue light from the sun back into space. This is why Neptune appear blue. Neptune's blue color is largely the result of absorption of red light by methane in the atmosphere but there are some additional as yet unidentified chromospheres which gives the clouds their rich blue tint.